Ijarcce9 b a anjan a comparative analysis grid cluster and cloud computing

ISSN (Online) : 2278-1021
ISSN (Print) : 2319-5940
International Journal of Advanced Research in Computer and Communication Engineering
Vol. 3, Issue 3, March 2014
Copyright to IJARCCE www.ijarcce.com 5730
A Comparative Analysis: Grid, Cluster and
Cloud Computing
Kiranjot Kaur1
, Anjandeep Kaur Rai2
M.Tech Scholar, Department of Computer Science and Engineering,Lovely Professional University, Phagwara, India1, 2
Abstract: Cloud computing is really changing the way of computation. Many computer resources such as hardware and
software are collected into the resource pool which can be assessed by the users via the internet through web browsers
or light weight desktops or mobile devices. It is not a very new concept; it is related to grid computing paradigm, and
utility computing as well as cluster computing. All these computing viz. Grid, cluster and utility computing, have
actually contributed in the development of cloud computing. In this paper, we are going to compare all the technologies
which leads to the emergence of Cloud computing.
Keywords: cluster computing; grid computing; cloud computing; resource balancing; pay-as-you-go.
I. INTRODUCTION
We have experience a tremendous change in computing
from older times till today. Previously, large computers
were kept behind the glass walls and only the professional
are allowed to operate them [1]. Later, came the concept
of grid computing which allows the users to have
computing on demand according to need [2]. After that,
we got such computing which makes resource
provisioning easier and on demand of user [3]. Then,
finally we got the concept of cloud computing which
concentrates on the provisioning and de provisioning of
computation, storage, data services to and from the user
without user being not aware of the fact that from where
he is getting those resources [4]. With the large scale use
of internet all over the globe, everything can be delivered
over internet using the concept of cloud computing as a
utility like gas, water, and electricity etc. [5].
The rest of the paper is organized as follows: Section II
describes the cluster computing including its advantages
and disadvantages. Section III describes grid computing
including its advantages and disadvantages. Section IV
describes cloud computing including its advantages and
disadvantages. Section V represents comparison between
cluster, grid, and cloud computing. In the last section,
conclusion is presented.
II. CLUSTER COMPUTING
Cluster computing is a type of computing in which several
nodes are made to run as a single entity [6].The various
nodes involved in cluster are normally connected to each
other using some fast local area networks [7]. There are
mainly two reasons of deploying a cluster instead of a
single computer which are performance and fault
tolerance. An application desires high computation in
terms of response time, memory and throughput especially
when we talk about real time applications. Cluster
computing provides high computation by employing
parallel programming, which is use of many processors
simultaneously for a number of or a single problem.
Another reason is fault tolerance which is actually the
ability of a system to operate gracefully even in the
presence of any fault. As the clusters are the replicas of
similar components, the fault in one component only
affects the cluster’s power but not its availability [8]. So,
users always have some components to work with even in
the presence of fault.
Fig. 1: Cluster Computing [7]
Here Fig. 1 shows the general concept of cluster
computing according to which several nodes merge
together and are presented as a single interface/node to the
user.
A. Advantages of Cluster Computing
(1) Manageability: It takes a lot of effort, cost and money
to manage a large number of components. But, with
cluster, large numbers of components are combined to
work as a single entity. So, management becomes
easy.
(2) Single System Image: Again, with cluster, user just
gets the feel that he is working with a single system,
but actually he is working with a large number of
components. He need not worry about that
components, he only needs to manage a single system
image.
(3) High Availability: As all the components are replicas
of each other, so if one component goes down because

ISSN (Print) : 2319-5940
of ay technical reason, then some other component
can takes its place, and user can continue to work with
the system [9].
B. Disadvantages of Cluster Computing
(1) Programmability Issues: This might be the case if the
components are different in terms of software from
each other, and then there may be issues when
combining all of them together as a single entity.
(2) Problem in Finding Fault: Because we are dealing
with a single entity, so problem may arise when
finding out fault that which of the component has
some problem associated with it.
(3) Difficult to handle by a Layman: As cluster
computing involves merging different or same
components together with different programmability,
so a non-professional person may find it difficult to
manage [9].
III. GRID COMPUTING
Grid computing is the segregation of resources from
multiple sites so as to solve a problem that can’t be solved
by using the processing of a single computer [7]. It
employs use of multiple clusters that are loosely coupled,
heterogeneous and are geographically dispersed [10]. Here
individual user gets access to the resources (like
processors, storage, data etc.) on demand with little or no
knowledge of the fact that where those resources are
physically located. For example, we use electricity for
running air-conditioners, televisions etc. through wall
sockets without concerned about the fact that from where
that electricity is coming and how it is being generated
[11]. It is more popularly known as a collection of servers
that are bound together to attack a single problem [12].
Grid computing is concerned about sharing, collecting,
hosting and providing services to various consumers [7].
Fig. 2: Grid computing concept [11]
Here Fig. 2 shows the general concept of grid computing
which shows that various resources are segregated from
across the globe or geographically dispersed locations
towards a central location i.e. the grid system.
A. Advantages of Grid Computing
(1) Access to Additional Resources: In addition to CPU
and other storage resources, a grid can also provide
other resources as well.
(2) Resource Balancing: A grid incorporates large
number of systems into a single system image. For
applications that are grid enabled, grid performs the
resource balancing by scheduling grid jobs on
machines that are showing low utilization.
(3) Reliability: The systems in grid are cheap and
geographically dispersed. If, for example, there is
power or cooling failure at one site, then that will not
affect the other site, thus high reliability will be there
specially in case of real time systems [11].
B. Disadvantages of Grid Computing
(1) Not Stable: Grid software and standards are not stable
in comparison to other computing. Its standards are
still evolving [13].
(2) High Internet Connection Required: Gathering and
assembling various resources from geographically
dispersed sites require high internet connection which
results in high monetary cost.
(3) Different Administrator Domains: Sometimes
political issues arise when sharing resources among
different domains. Some additional tools are required
for having proper syncing and managing among
different environments like cfengine, opsware etc
[14].
IV. CLOUD COMPUTING
Cloud computing is the new computing paradigm which
provides large pool of dynamical scalable and virtual
resources as a service on demand. The main principle
behind cloud computing model is to offer computing,
storage, and software as a service or as a utility. We just
need internet to use these utilities. Buyya et al. (2009) [15]
have defined it as follows: “Cloud is a parallel and
distributed computing system consisting of a collection of
inter-connected and virtualized computers that are
dynamically provisioned and presented as one or more
unified computing resources based on service-level
agreements (SLA) established through negotiation
between the service provider and consumers.”
Fig. 3: Cloud computing concept [19]
Here Fig. 3 shows that how users can connect to the cloud
services provided by cloud service provider using any
device over the internet. Cloud infrastructure includes
scalable resources in storage, network, and compute. It
also contain virtualized infrastructure and provide these
services to the users over internet.
Cloud computing cuts the operational and capital costs
and allow the IT departments to focus on strategic projects
instead of keeping the datacenter running. It provides the
services on Infrastructure level, Platform level, and
Software level. It provides many features such as speed,
scalability of resources, parallel processing, just pay the
used resources, choose another technology at any time to
further work, 24/7 availability of services, device and
location independent, provides reliability and security etc.

ISSN (Print) : 2319-5940
Cloud has five essential features such as rapid elasticity,
measured services, on-demand self-service, resource
pooling, and board network access as shown in Fig. 4.
Fig. 4: Five features of cloud computing
A. Advantages of Cloud Computing
(1) Shared Resources: Cloud computing share resources
to provide the services to multiple users. That’s why it
can easily provide the facility like scale up and scale
down the resources on demand.
(2) Pay-As-You-Go: Users just need to pay only for those
resources which are used by them. They can demand
for more resources if they required latter on and they
can also release their resources after use.
(3) Better Hardware Management: It is easy for cloud
service provider to manage the hardware easily
because all computers run the same hardware [7].
(4) Save CAPEX and OPEX of Users: New technologies
are developing very rapidly. Organizations need to
use new technologies to fulfill the requirements of
their customers. But changing the technologies is very
costly. With the help of cloud computing, users don’t
need to purchase the physical infrastructure and spend
money on maintaining it. They can use any
technology as per their requirement.
B. Disadvantages of Cloud Computing
(1) Less Reliability: Cloud Computing is less reliable
because it used to share the resources with multiple
users. So there is possibility to steal the data of a user
or data of one organization may mix with the data of
another organization. For example, In 2007 Microsoft
and Yahoo! released some search data to the US
Department of Justice as part of a child pornography
case [17]. A disgruntled employee could alter or
destroy the data using his or her own access
credentials. If cloud storage system is not reliable, no
one wants to save the data on an unreliable system
[18].
(2) Internet: The main requirement for users to use the
services of cloud computing is internet. Users
required high speed of internet connection [16].
Unavailability of internet would cause unavailability
of data.
(3) Non-Interoperability: If user stored data in one cloud
then later on he/she can’t move it to another cloud
service provider because there is non-interoperability
between cloud based systems [16].
V. COMPARISON BETWEEN GRID,
CLUSTER AND CLOUD COMPUTING
Table 1 shows the comparison between cluster, grid, and
cloud computing.
Cluster Computing Grid Computing Cloud Computing
Characteristics of Cluster
computing
1:Tightly coupled systems
2: Single system image
3: Centralized Job
management & scheduling
system
Characteristics of Grid
Computing
1: Loosely coupled
(Decentralization)
2: Diversity and Dynamism
3: Distributed Job Management
& scheduling
Characteristic of cloud computing
1: Dynamic computing infrastructure
2: IT service-centric approach
3: Self-service based usage model
4: Minimally or self-managed platform
5: Consumption-based billing
In cluster computing, a bunch
of similar (or identical)
computers are hooked up
locally (in the same physical
location, directly connected
with very high speed
connections) to operate as a
single computer
In grid computing, the computers
do not have to be in the same
physical location and can be
operated independently. As far as
other computers are concerned
each computer on the grid is a
distinct computer.
In cloud computing, the computers
need not to be in the same physical
location.
The cluster computers all
have the same hardware and
OS.
The computers that are part of a
grid can run different operating
systems and have different
hardware
The memory, storage device and
network communication are managed
by the operating system of the basic
physical cloud units. Open source
software such as LINUX can support
the basic physical unit management
and virtualization computing.
The whole system (all nodes) Every node is autonomous i.e. it Every node acts as an independent

ISSN (Print) : 2319-5940
behaves like a single system
view and resources are
managed by centralized
resource manager.
has its own resource manager
and behaves like an independent
entity
entity
The computers in the cluster
are normally contained in a
single location or complex.
Grid are inherently distributed by
its nature over a LAN,
metropolitan or WAN
Clouds are mainly distributed over
MAN
More than 2 computers are
connected to solve a problem
A large project is divided among
multiple computers to make use
of their resources.
It does just the opposite. It allows
multiple smaller applications to run at
the same time.
Areas of cluster computing
1. Educational resources
2.Commercial sectors for
industrial promotion
3.Medical research
Areas of Grid Computing
1.Predictive Modeling and
Simulations
2.Engineering Design and
Automation
3.Energy Resources Exploration
4.Medical, Military and Basic
Research
5.Visualization
Areas of cloud Computing
1.Banking
2.Insurance
3.Weather Forecasting
4.Space Exploration
5.Software as a service
6.PaaS
7.Infrastructure- as -a-Service
Commodity computers
High-end computers (servers,
clusters)
Commodity computers and high-end
servers and network attached storage
Size or scalability is 100s Size or scalability is 1000s Size or scalability is 100s to 1000s
One of the standard OSs
(Linux, Windows)
Any standard OS (dominated by
Unix)
A hypervisor (VM) on which multiple
OSs run
Single Ownership Multiple Ownership Single Ownership
Dedicated, high-end with low
latency and high bandwidth
Interconnection Network
Mostly Internet with high latency
and low Bandwidth
Interconnection Network
Dedicated, high-end with low latency
and high Bandwidth Interconnection
Network
Traditional login/password-
based. Medium level of
privacy depends on user
privileges.
Public/private key pair based
authentication and mapping a
user to an account. Limited
support for privacy.
Each user/application is provided with
a virtual machine. High
security/privacy is guaranteed. Support
for setting per-file access control list
(ACL).
Membership services
discovery
Centralized indexing and
decentralized info services
discovery
Membership services discovery
Limited service negotiation
Yes, SLA based service
negotiation
SLA based service negotiation
User management is
centralized
User management is
decentralized and also virtual
organization (VO)-based
User management is centralized or can
be delegated to third party
Resource management is
centralized
distributed
centralized/distributed
Virtual Interface Architecture
(VIA)-based standards
Some Open Grid Forum
standards
Web Services (SOAP and REST)
standards
Single system image No single system image
Yes, but optionally include Single
system image
Stable and guarantee capacity Varies, but high capacity Provisioned on demand capacity

ISSN (Print) : 2319-5940
Failure management (Self-
healing) is limited (often
failed tasks/applications are
restarted).
Failure management (Self-
healing) is limited (often failed
tasks/applications are restarted).
Strong support for failover and content
replication. VMs can be easily
migrated from one node to other.
Limited pricing of services
but not open market
Pricing of services is dominated
by public good or privately
assigned
Utility pricing, discounted for larger
customers
Multi-clustering within an
Organization for
internetworking
Limited adoption for
internetworking, but being
explored through research efforts
such as Gridbus InterGrid
High potential, third party solution
providers can loosely tie together
services of different Clouds for
internetworking.
Potential for building 3rd
party or value-added
solutions is limited due to
rigid architecture
Potential for building 3rd
party or
value-added solutions is limited
due to strong orientation for
scientific Computing
High potential - can create new
services by dynamically provisioning
of compute, storage, and application
services and offer as their own isolated
or composite Cloud services to users
Table 1: Comparison between Cluster, Grid and Cloud Computing [5, 7]
VI. CONCLUSION
Cloud computing is a new technology of computer
network, providing the web services at lower cost
comparing to normal technique. It contributes to improve
the services in other related technologies such as Grid
computing, cluster and utility computing. Presently, the
security in clouds is less than the model in grid
environment. In this paper we highlight the advantages,
disadvantages and compared the features of cluster
computing, grid computing, and cloud computing.
ACKNOWLEDGMENT
The making of the paper needed co-operation and
guidance of a number of people. We therefore consider it
our prime duty to thank all those who had helped me
through their venture. It’s our immense pleasure to express
our gratitude to our teachers of Lovely Professional
University, Phagwara, India who provided us constructive
and positive feedback during the preparation of this.
We are also thankful to our parents for supporting us at
each and every phase.
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[19] http://www.google.co.in/imgres?sa=G&hl=en&tbm=isch&tbnid
=SqF-
0iD93BvJlM%3A&imgrefurl=http%3A%2F%2Flakjeewa.blogs
pot.com%2F2011%2F09%2Fwhat-is-cloud-
computing.html&docid=blSqlVWBdvfmtM&imgurl=http%3A
%2F%2F1.bp.blogspot.com%2F-
3Cj5Kxe0UrA%2FTmFEdFuD7-
I%2FAAAAAAAAAFU%2FceKJ3pxEKHI%2Fs1600%2Fclou
d_computing.jpg&w=606&h=311&ei=c2vyUv65LMOHrQeBm
4CwDg&zoom=1&ved=0COYCEIQcMFI&iact=rc&dur=517&
page=5&start=72&ndsp=19
BIOGRAPHIES
Kiranjot Kaur is currently doing M.Tech
from Lovely Professional University,
Phagwara, India. She did B.Tech from the
same institution. Her area of interests are
Cloud Computing and Data Mining
Ms. Anjandeep Kaur Rai is doing
M.Tech form Lovely Professional
University, Phagwara, India. She did Msc-
IT from DAV Jalandhar. Her area of
interests are Data Structures and Cloud
computing.

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